/* roulang page: index */
:root {
            --brand-orange: #FF4D00;
            --brand-orange-hover: #FF6B2B;
            --brand-orange-glow: rgba(255, 77, 0, 0.45);
            --accent-green: #00F0A8;
            --accent-green-glow: rgba(0, 240, 168, 0.35);
            --bg-deep: #121212;
            --bg-surface: #1E1E1E;
            --bg-surface-alt: #1A1A1A;
            --bg-card: #1C1C1C;
            --bg-overlay: rgba(255, 255, 255, 0.04);
            --bg-overlay-strong: rgba(255, 255, 255, 0.07);
            --text-primary: #FFFFFF;
            --text-secondary: #B0B0B0;
            --text-muted: #7A7A7A;
            --border-subtle: rgba(255, 255, 255, 0.08);
            --border-medium: rgba(255, 255, 255, 0.14);
            --border-glow: rgba(255, 77, 0, 0.55);
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --radius-2xl: 24px;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
            --shadow-md: 0 8px 30px rgba(0, 0, 0, 0.4);
            --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.5);
            --shadow-glow-orange: 0 0 28px rgba(255, 77, 0, 0.35);
            --shadow-glow-green: 0 0 22px rgba(0, 240, 168, 0.3);
            --spacing-xs: 8px;
            --spacing-sm: 16px;
            --spacing-md: 24px;
            --spacing-lg: 40px;
            --spacing-xl: 60px;
            --spacing-2xl: 80px;
            --spacing-3xl: 100px;
            --max-width: 1280px;
            --nav-height: 68px;
            --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-smooth: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-bounce: 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
            scroll-padding-top: var(--nav-height);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: 'Inter', 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
            font-size: 16px;
            line-height: 1.65;
            color: var(--text-primary);
            background-color: var(--bg-deep);
            min-height: 100vh;
            overflow-x: hidden;
            letter-spacing: 0.01em;
        }

        img {
            display: block;
            max-width: 100%;
            height: auto;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: color var(--transition-fast);
        }

        button {
            cursor: pointer;
            font-family: inherit;
            border: none;
            outline: none;
        }

        button:focus-visible,
        a:focus-visible,
        input:focus-visible {
            outline: 2px solid var(--accent-green);
            outline-offset: 3px;
            border-radius: var(--radius-sm);
        }

        .container {
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }

        /* ========== NAVIGATION ========== */
        .nav {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: var(--nav-height);
            background: rgba(18, 18, 18, 0.82);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border-subtle);
            transition: background var(--transition-smooth), box-shadow var(--transition-smooth);
        }

        .nav.scrolled {
            background: rgba(18, 18, 18, 0.95);
            box-shadow: 0 4px 24px rgba(0, 0, 0, 0.5);
        }

        .nav-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }

        .nav-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.35rem;
            font-weight: 800;
            color: var(--text-primary);
            letter-spacing: -0.01em;
            white-space: nowrap;
            z-index: 1001;
        }

        .nav-logo .logo-icon {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            background: linear-gradient(135deg, var(--brand-orange), #E64400);
            border-radius: var(--radius-md);
            font-size: 1.1rem;
            color: #fff;
            box-shadow: var(--shadow-glow-orange);
            flex-shrink: 0;
        }

        .nav-logo .logo-text {
            background: linear-gradient(135deg, #FFFFFF, #E0E0E0);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 6px;
            list-style: none;
        }

        .nav-links a {
            display: inline-block;
            padding: 8px 16px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-secondary);
            border-radius: var(--radius-md);
            transition: color var(--transition-fast), background var(--transition-fast);
            white-space: nowrap;
            position: relative;
        }

        .nav-links a:hover,
        .nav-links a.active {
            color: var(--text-primary);
            background: var(--bg-overlay);
        }

        .nav-links a::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%) scaleX(0);
            width: 18px;
            height: 2px;
            background: var(--brand-orange);
            border-radius: 2px;
            transition: transform var(--transition-bounce);
        }

        .nav-links a:hover::after,
        .nav-links a.active::after {
            transform: translateX(-50%) scaleX(1);
        }

        .nav-cta {
            display: inline-flex;
            align-items: center;
            gap: 7px;
            padding: 10px 20px;
            font-size: 0.9rem;
            font-weight: 600;
            color: #fff;
            background: linear-gradient(135deg, var(--brand-orange), #E64400);
            border-radius: var(--radius-md);
            box-shadow: 0 4px 16px rgba(255, 77, 0, 0.3);
            transition: all var(--transition-smooth);
            white-space: nowrap;
            border: none;
            cursor: pointer;
        }

        .nav-cta:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(255, 77, 0, 0.5);
            background: linear-gradient(135deg, var(--brand-orange-hover), #FF5A1F);
        }

        .nav-cta:active {
            transform: translateY(0);
            box-shadow: 0 2px 10px rgba(255, 77, 0, 0.3);
        }

        .hamburger {
            display: none;
            flex-direction: column;
            gap: 5px;
            background: none;
            border: none;
            cursor: pointer;
            z-index: 1001;
            padding: 8px;
            border-radius: var(--radius-sm);
            transition: background var(--transition-fast);
        }

        .hamburger:hover {
            background: var(--bg-overlay);
        }

        .hamburger span {
            display: block;
            width: 26px;
            height: 2.5px;
            background: var(--text-primary);
            border-radius: 2px;
            transition: all var(--transition-smooth);
            transform-origin: center;
        }

        .hamburger.active span:nth-child(1) {
            transform: translateY(7.5px) rotate(45deg);
        }
        .hamburger.active span:nth-child(2) {
            opacity: 0;
            transform: scaleX(0);
        }
        .hamburger.active span:nth-child(3) {
            transform: translateY(-7.5px) rotate(-45deg);
        }

        .mobile-menu-overlay {
            display: none;
            position: fixed;
            inset: 0;
            background: rgba(10, 10, 10, 0.96);
            z-index: 999;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 28px;
            opacity: 0;
            pointer-events: none;
            transition: opacity var(--transition-smooth);
        }

        .mobile-menu-overlay.open {
            display: flex;
            opacity: 1;
            pointer-events: auto;
        }

        .mobile-menu-overlay a {
            font-size: 1.3rem;
            font-weight: 600;
            color: var(--text-primary);
            padding: 12px 28px;
            border-radius: var(--radius-md);
            transition: all var(--transition-fast);
        }

        .mobile-menu-overlay a:hover {
            background: var(--bg-overlay-strong);
            color: var(--brand-orange);
        }

        .mobile-menu-overlay .mobile-cta {
            margin-top: 12px;
            padding: 14px 36px;
            font-size: 1.05rem;
            font-weight: 700;
            color: #fff;
            background: linear-gradient(135deg, var(--brand-orange), #E64400);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-glow-orange);
            transition: all var(--transition-smooth);
        }

        .mobile-menu-overlay .mobile-cta:hover {
            transform: translateY(-3px);
            box-shadow: 0 12px 36px rgba(255, 77, 0, 0.55);
        }

        /* ========== HERO SECTION ========== */
        .hero {
            position: relative;
            min-height: 100vh;
            display: flex;
            align-items: center;
            padding-top: var(--nav-height);
            overflow: hidden;
            background-color: var(--bg-deep);
        }

        .hero-bg {
            position: absolute;
            inset: 0;
            z-index: 0;
        }

        .hero-bg img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            opacity: 0.28;
            filter: brightness(0.5) saturate(0.7);
        }

        .hero-bg::after {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 30% 50%, rgba(255, 77, 0, 0.18) 0%, transparent 60%),
                radial-gradient(ellipse at 70% 40%, rgba(0, 240, 168, 0.06) 0%, transparent 55%),
                linear-gradient(180deg, rgba(18, 18, 18, 0.3) 0%, rgba(18, 18, 18, 0.85) 60%, #121212 100%);
        }

        .hero .container {
            position: relative;
            z-index: 2;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
            width: 100%;
        }

        .hero-content {
            max-width: 560px;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 7px 16px;
            font-size: 0.82rem;
            font-weight: 600;
            color: var(--accent-green);
            background: rgba(0, 240, 168, 0.08);
            border: 1px solid rgba(0, 240, 168, 0.2);
            border-radius: 50px;
            margin-bottom: 24px;
            letter-spacing: 0.03em;
        }

        .hero-badge .badge-dot {
            width: 8px;
            height: 8px;
            background: var(--accent-green);
            border-radius: 50%;
            animation: pulse-dot 1.8s ease-in-out infinite;
        }

        @keyframes pulse-dot {
            0%,
            100% {
                box-shadow: 0 0 0 0 rgba(0, 240, 168, 0.7);
            }
            50% {
                box-shadow: 0 0 0 10px rgba(0, 240, 168, 0);
            }
        }

        .hero h1 {
            font-size: clamp(2.4rem, 4.8vw, 3.5rem);
            font-weight: 900;
            line-height: 1.18;
            letter-spacing: -0.02em;
            margin-bottom: 18px;
            color: #FFFFFF;
        }

        .hero h1 .highlight {
            background: linear-gradient(135deg, var(--brand-orange), #FF7B3D);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .hero-subtitle {
            font-size: 1.08rem;
            color: var(--text-secondary);
            margin-bottom: 32px;
            line-height: 1.6;
            max-width: 440px;
            letter-spacing: 0.02em;
        }

        .hero-buttons {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 28px;
            font-size: 1rem;
            font-weight: 600;
            border-radius: var(--radius-md);
            transition: all var(--transition-smooth);
            cursor: pointer;
            letter-spacing: 0.01em;
            white-space: nowrap;
            position: relative;
            overflow: hidden;
        }

        .btn-primary {
            background: linear-gradient(135deg, var(--brand-orange), #E64400);
            color: #fff;
            box-shadow: 0 6px 22px rgba(255, 77, 0, 0.35);
            border: none;
        }

        .btn-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 12px 36px rgba(255, 77, 0, 0.55);
            background: linear-gradient(135deg, var(--brand-orange-hover), #FF5A1F);
        }

        .btn-primary:active {
            transform: translateY(-1px);
            box-shadow: 0 4px 14px rgba(255, 77, 0, 0.3);
        }

        .btn-outline {
            background: transparent;
            color: var(--accent-green);
            border: 2px solid var(--accent-green);
            box-shadow: 0 0 0 0 rgba(0, 240, 168, 0);
        }

        .btn-outline:hover {
            background: rgba(0, 240, 168, 0.08);
            box-shadow: 0 0 28px rgba(0, 240, 168, 0.25);
            transform: translateY(-3px);
            border-color: #33F5B8;
            color: #33F5B8;
        }

        .btn-outline:active {
            transform: translateY(-1px);
            box-shadow: 0 0 14px rgba(0, 240, 168, 0.15);
        }

        .hero-visual {
            display: flex;
            align-items: center;
            justify-content: center;
            position: relative;
        }

        .phone-mockup {
            position: relative;
            width: 280px;
            height: 560px;
            background: #1A1A1A;
            border-radius: 36px;
            border: 3px solid #333;
            overflow: hidden;
            box-shadow: var(--shadow-lg), 0 0 60px rgba(255, 77, 0, 0.12);
            animation: float-phone 5s ease-in-out infinite;
            z-index: 1;
        }

        @keyframes float-phone {
            0%,
            100% {
                transform: translateY(0);
            }
            25% {
                transform: translateY(-14px);
            }
            50% {
                transform: translateY(-4px);
            }
            75% {
                transform: translateY(-18px);
            }
        }

        .phone-mockup .phone-notch {
            position: absolute;
            top: 14px;
            left: 50%;
            transform: translateX(-50%);
            width: 90px;
            height: 22px;
            background: #0D0D0D;
            border-radius: 0 0 16px 16px;
            z-index: 3;
        }

        .phone-mockup img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: 33px;
        }

        .phone-glow {
            position: absolute;
            width: 320px;
            height: 320px;
            background: radial-gradient(circle, rgba(255, 77, 0, 0.2) 0%, transparent 70%);
            border-radius: 50%;
            z-index: 0;
            animation: pulse-glow 3s ease-in-out infinite;
        }

        @keyframes pulse-glow {
            0%,
            100% {
                transform: scale(1);
                opacity: 0.5;
            }
            50% {
                transform: scale(1.25);
                opacity: 0.8;
            }
        }

        /* ========== SECTION COMMONS ========== */
        .section {
            padding: var(--spacing-3xl) 0;
            position: relative;
        }

        .section-header {
            text-align: center;
            margin-bottom: var(--spacing-2xl);
        }

        .section-label {
            display: inline-block;
            font-size: 0.8rem;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 0.08em;
            color: var(--accent-green);
            margin-bottom: 12px;
            padding: 5px 14px;
            background: rgba(0, 240, 168, 0.06);
            border-radius: 50px;
            border: 1px solid rgba(0, 240, 168, 0.15);
        }

        .section-header h2 {
            font-size: clamp(1.8rem, 3.2vw, 2.5rem);
            font-weight: 800;
            color: var(--text-primary);
            letter-spacing: -0.01em;
            line-height: 1.25;
        }

        .section-header p {
            color: var(--text-secondary);
            margin-top: 12px;
            font-size: 1.02rem;
            max-width: 600px;
            margin-left: auto;
            margin-right: auto;
        }

        /* ========== FEATURES GRID (ASYMMETRIC) ========== */
        .features-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }

        .feature-card {
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-xl);
            padding: 28px 26px;
            transition: all var(--transition-smooth);
            position: relative;
            overflow: hidden;
            display: flex;
            flex-direction: column;
            gap: 14px;
        }

        .feature-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: transparent;
            transition: background var(--transition-smooth);
            border-radius: 3px 3px 0 0;
        }

        .feature-card:hover {
            border-color: var(--border-medium);
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
            background: #1F1F1F;
        }

        .feature-card:hover::before {
            background: var(--brand-orange);
        }

        .feature-card.featured {
            grid-column: span 2;
            grid-row: span 1;
            background: linear-gradient(160deg, #1C1C1C 0%, #1A1A1A 100%);
            border-color: rgba(255, 77, 0, 0.25);
            flex-direction: row;
            align-items: center;
            gap: 32px;
            padding: 32px 30px;
        }

        .feature-card.featured .feature-icon-wrap {
            width: 72px;
            height: 72px;
            flex-shrink: 0;
            font-size: 2rem;
        }

        .feature-card.featured .feature-info {
            flex: 1;
        }

        .feature-card.featured h3 {
            font-size: 1.35rem;
        }

        .feature-icon-wrap {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 52px;
            height: 52px;
            background: rgba(0, 240, 168, 0.08);
            border-radius: var(--radius-lg);
            font-size: 1.5rem;
            color: var(--accent-green);
            flex-shrink: 0;
            transition: all var(--transition-smooth);
        }

        .feature-card:hover .feature-icon-wrap {
            background: rgba(0, 240, 168, 0.15);
            box-shadow: var(--shadow-glow-green);
        }

        .feature-card h3 {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--text-primary);
            letter-spacing: 0.01em;
        }

        .feature-card p {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.55;
        }

        .feature-stat {
            font-size: 2.2rem;
            font-weight: 900;
            color: var(--brand-orange);
            letter-spacing: -0.02em;
        }

        /* ========== CASES WATERFALL ========== */
        .cases-waterfall {
            column-count: 2;
            column-gap: 20px;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }

        .case-card {
            break-inside: avoid;
            margin-bottom: 20px;
            background: var(--bg-card);
            border-radius: var(--radius-xl);
            overflow: hidden;
            border: 1px solid var(--border-subtle);
            transition: all var(--transition-smooth);
            cursor: default;
        }

        .case-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-lg);
            border-color: var(--border-medium);
        }

        .case-card img {
            width: 100%;
            display: block;
            object-fit: cover;
            aspect-ratio: 16 / 10;
            transition: transform var(--transition-smooth);
        }

        .case-card:hover img {
            transform: scale(1.04);
        }

        .case-card-body {
            padding: 18px 20px 20px;
        }

        .case-card-body h3 {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 6px;
            letter-spacing: 0.01em;
        }

        .case-card-body p {
            font-size: 0.85rem;
            color: var(--text-secondary);
            line-height: 1.5;
            margin-bottom: 10px;
        }

        .case-tag {
            display: inline-flex;
            align-items: center;
            gap: 5px;
            padding: 5px 12px;
            font-size: 0.78rem;
            font-weight: 700;
            color: var(--accent-green);
            background: rgba(0, 240, 168, 0.07);
            border-radius: 50px;
            border: 1px solid rgba(0, 240, 168, 0.18);
            letter-spacing: 0.02em;
        }

        .case-tag .tag-fire {
            font-size: 0.85rem;
        }

        /* ========== COMPARE SECTION ========== */
        .compare-wrapper {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
            max-width: 900px;
            margin: 0 auto;
            padding: 0 24px;
        }

        .compare-card {
            background: var(--bg-card);
            border: 2px solid var(--border-subtle);
            border-radius: var(--radius-xl);
            padding: 32px 28px;
            transition: all var(--transition-smooth);
            position: relative;
        }

        .compare-card.recommended {
            border-color: rgba(255, 77, 0, 0.45);
            box-shadow: 0 0 36px rgba(255, 77, 0, 0.1);
            background: #1C1A18;
        }

        .compare-card.recommended::before {
            content: '🔥 推荐';
            position: absolute;
            top: -14px;
            left: 50%;
            transform: translateX(-50%);
            padding: 5px 18px;
            font-size: 0.78rem;
            font-weight: 700;
            color: #fff;
            background: linear-gradient(135deg, var(--brand-orange), #E64400);
            border-radius: 50px;
            letter-spacing: 0.04em;
            box-shadow: var(--shadow-glow-orange);
            white-space: nowrap;
        }

        .compare-card:hover {
            border-color: var(--border-medium);
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
        }

        .compare-card.recommended:hover {
            border-color: rgba(255, 77, 0, 0.65);
            box-shadow: 0 0 48px rgba(255, 77, 0, 0.2);
        }

        .compare-card .compare-icon {
            font-size: 2.5rem;
            margin-bottom: 16px;
            text-align: center;
        }

        .compare-card h3 {
            text-align: center;
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 20px;
        }

        .compare-list {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 12px;
            margin-bottom: 24px;
        }

        .compare-list li {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 0.9rem;
            color: var(--text-secondary);
            padding: 8px 0;
            border-bottom: 1px solid var(--border-subtle);
        }

        .compare-list li .check-icon {
            color: var(--accent-green);
            font-size: 1rem;
            flex-shrink: 0;
        }

        .compare-card .btn {
            width: 100%;
            justify-content: center;
            text-align: center;
        }

        /* ========== FAQ ========== */
        .faq-list {
            max-width: 760px;
            margin: 0 auto;
            padding: 0 24px;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .faq-item {
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: all var(--transition-smooth);
        }

        .faq-item:hover {
            border-color: var(--border-medium);
        }

        .faq-question {
            width: 100%;
            text-align: left;
            padding: 20px 24px;
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-primary);
            background: transparent;
            border: none;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            letter-spacing: 0.01em;
            transition: color var(--transition-fast);
        }

        .faq-question:hover {
            color: var(--brand-orange);
        }

        .faq-question .faq-arrow {
            flex-shrink: 0;
            font-size: 1.1rem;
            color: var(--text-muted);
            transition: transform var(--transition-smooth);
        }

        .faq-item.open .faq-question .faq-arrow {
            transform: rotate(180deg);
            color: var(--brand-orange);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1), padding 0.4s cubic-bezier(0.4, 0, 0.2, 1);
        }

        .faq-item.open .faq-answer {
            max-height: 300px;
        }

        .faq-answer-inner {
            padding: 0 24px 20px;
            font-size: 0.92rem;
            color: var(--text-secondary);
            line-height: 1.65;
        }

        /* ========== CTA DOWNLOAD ========== */
        .cta-download {
            position: relative;
            padding: var(--spacing-3xl) 0;
            text-align: center;
            overflow: hidden;
            background-color: #0F0A06;
        }

        .cta-download .cta-bg {
            position: absolute;
            inset: 0;
            z-index: 0;
        }

        .cta-download .cta-bg img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            opacity: 0.22;
            filter: brightness(0.4) saturate(0.6);
        }

        .cta-download .cta-bg::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(18, 18, 18, 0.9) 0%, rgba(255, 77, 0, 0.25) 40%, rgba(18, 18, 18, 0.95) 100%);
        }

        .cta-download .container {
            position: relative;
            z-index: 2;
        }

        .cta-download h2 {
            font-size: clamp(1.8rem, 3.5vw, 2.6rem);
            font-weight: 900;
            color: #FFFFFF;
            margin-bottom: 14px;
            letter-spacing: -0.01em;
        }

        .cta-download p {
            color: var(--text-secondary);
            font-size: 1.05rem;
            margin-bottom: 32px;
        }

        .cta-buttons {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            justify-content: center;
            margin-bottom: 28px;
        }

        .cta-qr-placeholder {
            display: inline-block;
            width: 110px;
            height: 110px;
            background: #fff;
            border-radius: var(--radius-lg);
            padding: 8px;
            box-shadow: var(--shadow-md);
        }

        .cta-qr-placeholder .qr-inner {
            width: 100%;
            height: 100%;
            background: repeating-linear-gradient(0deg, #222 0px, #222 4px, #fff 4px, #fff 8px),
                repeating-linear-gradient(90deg, #222 0px, #222 4px, #fff 4px, #fff 8px);
            border-radius: 8px;
            opacity: 0.7;
        }

        .cta-qr-label {
            font-size: 0.78rem;
            color: var(--text-muted);
            margin-top: 10px;
        }

        /* ========== FOOTER ========== */
        .footer {
            background: #0A0A0A;
            border-top: 1px solid var(--border-subtle);
            padding: 40px 0;
            text-align: center;
        }

        .footer-brand {
            font-size: 1.2rem;
            font-weight: 800;
            color: var(--text-primary);
            margin-bottom: 8px;
            letter-spacing: 0.02em;
        }

        .footer-brand .footer-logo-icon {
            display: inline-block;
            width: 28px;
            height: 28px;
            background: linear-gradient(135deg, var(--brand-orange), #E64400);
            border-radius: 6px;
            vertical-align: middle;
            margin-right: 6px;
        }

        .footer-links {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 20px;
            margin: 16px 0;
            list-style: none;
        }

        .footer-links a {
            font-size: 0.85rem;
            color: var(--text-muted);
            transition: color var(--transition-fast);
        }

        .footer-links a:hover {
            color: var(--brand-orange);
        }

        .footer-copy {
            font-size: 0.8rem;
            color: var(--text-muted);
            margin-top: 16px;
            letter-spacing: 0.02em;
        }

        .back-to-top {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            margin-top: 20px;
            padding: 10px 20px;
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--accent-green);
            background: rgba(0, 240, 168, 0.06);
            border-radius: 50px;
            border: 1px solid rgba(0, 240, 168, 0.2);
            transition: all var(--transition-smooth);
            cursor: pointer;
        }

        .back-to-top:hover {
            background: rgba(0, 240, 168, 0.14);
            box-shadow: var(--shadow-glow-green);
            transform: translateY(-3px);
        }

        /* ========== RESPONSIVE ========== */
        @media (max-width: 1024px) {
            .hero .container {
                grid-template-columns: 1fr;
                gap: 36px;
                text-align: center;
            }
            .hero-content {
                max-width: 100%;
                order: 1;
            }
            .hero-subtitle {
                max-width: 100%;
            }
            .hero-buttons {
                justify-content: center;
            }
            .hero-visual {
                order: 0;
            }
            .phone-mockup {
                width: 220px;
                height: 440px;
                border-radius: 28px;
            }
            .phone-mockup img {
                border-radius: 25px;
            }
            .phone-mockup .phone-notch {
                width: 70px;
                height: 16px;
                top: 10px;
                border-radius: 0 0 12px 12px;
            }
            .features-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
            .feature-card.featured {
                grid-column: span 2;
                flex-direction: column;
                text-align: center;
                gap: 16px;
                padding: 24px 20px;
            }
            .cases-waterfall {
                column-count: 2;
                column-gap: 16px;
            }
            .compare-wrapper {
                grid-template-columns: 1fr;
                gap: 20px;
                max-width: 500px;
            }
        }

        @media (max-width: 768px) {
            .nav-links {
                display: none;
            }
            .nav-cta.desktop-only {
                display: none;
            }
            .hamburger {
                display: flex;
            }
            .hero {
                min-height: auto;
                padding-top: calc(var(--nav-height) + 30px);
                padding-bottom: 40px;
            }
            .hero .container {
                gap: 20px;
            }
            .phone-mockup {
                width: 180px;
                height: 360px;
                border-radius: 24px;
            }
            .phone-mockup img {
                border-radius: 21px;
            }
            .phone-mockup .phone-notch {
                width: 56px;
                height: 12px;
                top: 8px;
                border-radius: 0 0 10px 10px;
            }
            .phone-glow {
                width: 200px;
                height: 200px;
            }
            .section {
                padding: var(--spacing-2xl) 0;
            }
            .features-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }
            .feature-card.featured {
                grid-column: span 1;
                flex-direction: column;
                text-align: center;
                gap: 12px;
                padding: 22px 18px;
            }
            .cases-waterfall {
                column-count: 1;
                column-gap: 0;
            }
            .case-card {
                margin-bottom: 16px;
            }
            .compare-wrapper {
                grid-template-columns: 1fr;
                gap: 24px;
                max-width: 100%;
            }
            .faq-question {
                font-size: 0.92rem;
                padding: 16px 18px;
            }
            .faq-answer-inner {
                padding: 0 18px 16px;
                font-size: 0.85rem;
            }
            .cta-download {
                padding: var(--spacing-2xl) 0;
            }
            .btn {
                padding: 12px 22px;
                font-size: 0.9rem;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
            .hero h1 {
                font-size: 1.8rem;
            }
            .hero-subtitle {
                font-size: 0.9rem;
            }
            .hero-buttons {
                flex-direction: column;
                gap: 10px;
            }
            .btn {
                width: 100%;
                justify-content: center;
                text-align: center;
            }
            .phone-mockup {
                width: 150px;
                height: 300px;
                border-radius: 20px;
                border-width: 2px;
            }
            .phone-mockup img {
                border-radius: 17px;
            }
            .phone-mockup .phone-notch {
                width: 44px;
                height: 10px;
                top: 6px;
                border-radius: 0 0 8px 8px;
            }
            .features-grid {
                padding: 0 16px;
                gap: 10px;
            }
            .cases-waterfall {
                padding: 0 16px;
            }
            .compare-wrapper {
                padding: 0 16px;
            }
            .faq-list {
                padding: 0 16px;
            }
            .section-header h2 {
                font-size: 1.5rem;
            }
            .cta-download h2 {
                font-size: 1.5rem;
            }
            .cta-buttons {
                flex-direction: column;
                align-items: center;
                gap: 12px;
            }
        }